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(No Model.) 2 Shets-Sheet 1,

' S. A. JENKS.

RING SPINNING FRAME.

No. 246,613. Patented Sept. 6,1881.

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(No Model.) 2 Sheets-Sheet 2.

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RING SPINNING FRAME.

No. 246,613. Patented Sept. 6,1881.

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Unrrnn STATES ATENT @nrrcn.

STEPHEN A. JENKS, OF CENTRAL FALLS, RHODE ISLAND.

RING-SPINNING FRAME.

SPECIFICATION forming part of Letters Patent No. 246,613, datedSeptember 6, 1881. Application filed March 5, 1881. (No model.)

To all whom it may concern:

Be it known that I, STEPHEN A. James, of Central Falls, in the county ofProvidence and State of Rhode Island, have invented certain new anduseful Improvements in Ring-Spinning Frames; and I do hereby declarethat the following specification, taken in connection with the drawingsfurnished and forming a part of the same, is a clear, true, and completedescription of my invention.

My said improvements are specially applicable to that class ofring-spinning frames which have two sets of rolls and are adapted to theproduction of filling, because they enibody means for variably speedingthe drawingrolls or the delivery-rolls, or both, for attaininguniformity in the size and twistofthe yarn, notwithstanding the varyingconditions incident to the operation of the traverse or copping motionand the gradual increase in diameter of the wound bobbins.

Heretofore in frames intended for operation as described theroll-gearing has been operatively connected with the main shaftof the machine byavarietyot'methods,whichIwillbriefly describe as follows: Eachof the two sets of rolls has had a belt-pulley operatively connectedwith each other by a single belt passing around a loose or idle pulleybelow the main shaft, and with these there was a second loose pulleyabove the main shaft. These pulleys were all straight-faced, and thegraduated rotation of the rolls was effected by means of a cone-pulleyon the main shaft, connected by a second belt with a loose cone-pulleyconnected to the second plain pulley before referred to, all asillustrated in Letters Patent of the United States No. 16,028, November4, 1856. The same number of pulleys, and two belts similar in,character, but differing in their relative arrangement, are illustratedin Letters Patent of the United States No. 27 ,434, March 13, 1860. Inthe machine shown in said Letters Patent one of the belt-pulleys isgeared to rolls in both sets of rolls; but two additional belt-pulleysare employed, each of which is geared to the rolls in its particular setwhich are not geared to the first-mentioned pulley. Other arrangementsinvolving the use of two or more belts and trains of hi gh-speed gearingare illustrated in Letters Patent of the United States Nos. 186,322,186,323, 186,324, and 186,325, all dated January 16, 1877, to whichreference may be had, if need be,for a more complete understanding ofthe state of the art in this connection prior to my invention.

The objects of my invention are to obviate the noise, wear, and tearincident to high-speed gearing, and to lessen the expense and annoyanceincident to a multiplicity of belts. Instead of having any onebelt-pulley peculiar to either set of rolls, I employ pulleys andconnecting-gear which respectively drive a portion of the rolls of bothsets, and am thereby enabled to rely upon one belt for communicatingmotion from the main shaft to all the rolls, coupled with the desiredcapacity for effecting the graduated rotation of a certain roll or rollsin each set.

The several features of my invention, after being fully described, willbe designated in detail in the claims hereunto annexed.

Referring to the drawings, of which there are two sheets, Figure 1,Sheet 1, represents, in end view, so much of a ring-frame as is neces-75 sary to illustrate my invention applied thereto. Fig. 2, Sheet 2,represents the same in plan or top view. Fig. 3, Sheet 2, represents thesame in side view.

The end plate, A, of the frame is as usual cast in one piece, andprovided with suitable bearings, pillars, ears, and studs for mountingthe rolls and the requisite shafting, pinions, 850. The driving-shaft Bis located as heretofore, and has at its outer end the plain pulley C.

It will be understood that in some cases the front or delivery rollsonly in each set of rolls are variably driven, and in other cases thefront rolls are regularly driven and the rear rolls driven variably, andit has also been proposed to variably drive all of the rolls. Myimprovements are applicable in either of the cases indicated. As shownin the drawings for the purposes of illustration, the front or deliveryrolls, a, in both of the two sets are variably driven. The conicalbelt-pulley D is mounted upon a stud, and is directly geared to thefront roll of the right-hand set of rolls, Fig. 1, by pinion I),connected with the pulley 10c and gear 0 on said front-roll shaft, andthe gear at on the front-roll shaft of the left-hand set is geared togear 0 by the intermediate gears c and d. The plain belt-pulley E isalso mounted upon a stud, and has a gear, 6, connected therewith whichmeshes with gear f on shaftf, carrying a small gear, g, meshing withgear h. The two gears h and tmesh together, and are respectively gearedto and drive the middle and rear rolls of the two sets of rolls, m'agearing at each side of the frame, composed of the gear 10 and pinionlconnected therewith, (mounted on a stud,) meshing with a gear, m, onthe rear-roll shaft, this latter driving the middle roll by means of theusual gearing at the opposite end of the machine.

It will be seen that if the conical pulley D and plain pulley E berespectively shifted in position the front rolls of both sets will bedriven with uniformity and the rear rolls in both sets be variablydriven.

The idle or loose pulley F is located beneath the pulley O on the mainshaft, and is preferably conical in form to correspond with conicalpulley D. The belt G is a continuous one, passing around and beneath thepulley (J, around and above the pulleys D and E, thence around andbeneath the conical idle or loose pulley F.

The maintaining of the belt at proper tension is of practicalconsequence, because of its length and its numerous turns, and Itherefore provide for tightening the same by mounting said idle-pulleyin vertically-movable bearings, and employ means for pressing the samedownward against the lifting tendency of the belt. A screw with ahand-wheel for forcing the pulley downward may be employed; but I prefelto render it automatic in its operation by mounting said loose pulleyupon the outer end of the lever H, and provide thelatter with the weightn. The automatic shipper], which controls the belt G with relation toits position on the conical pulley D, is as heretofore-for instance, asshown in United States Letters Patent of George Draper, No. 186,324,Janu- My 16, 1877.

It will be readily seen that if it be desirable to variably drive all ofthe rolls in each set both of the upper pulleys may be conical; but inorder to well control the belt in its relations to the pulley E ashipper-fork would be pro vided, as indicated in dotted lines at I,which could be connected with the shipper-rod on which theshipper-fork Iis mounted, and, ifpnlley E is conical and the pulley D plain, it wouldbe advisable to locate the shipper-fork Iat the pointindicated at I. Theloose pulley F, being mounted upon a weighted lever, as shown, need notneeessaril y be conical, because, if said loose pulley have a straightface, the slack in the belt incident to its varying position on conicalulley D would be readily disposed of.

Having thus described myinvention, I claim as new and desire to secureby Letters Patent- 1. In aring-spinningframe having two sets ofvariably-driven rolls, the combination, with a pulley on the main shaft,of two pulleys (one or both conical) respectively geared to one or morerolls in each set of rolls and a loose pulley, substantially asdescribed, whereby one belt may be relied upon for engaging with all ofthe pulleys for driving the rolls, as set forth.

2. In a ring-spinning frame having two sets of variably-driven rolls,the combination, with a pulley on the main shaft, of two pulleys (one orboth conical) respectively geared to one or more rolls in each set ofrolls and a loose pulley mounted upon a weighted lever, substantially asdescribed, whereby one belt may be relied upon for engaging with all ofthe pulleys for driving the rolls and maintained at even tension, as setforth.

A. O. GRUM, Jr., 1 W. H. 0. SMITH.

